ASTM A182 Gr F51 Flange

ASTM A182 Gr F51 Flange is a duplex stainless steel flange designed for high-strength, corrosion-resistant, and high-temperature applications, making it ideal for use in the oil & gas, chemical, and marine industries. It combines high strength with excellent corrosion resistance, making it well-suited for demanding environments.

High Quality A182 F51 Flanges We Can Supply

SSM provides the ASTM A182 Gr F51 Flange, a duplex stainless steel flange specified by the ASTM A182 standard, classified as grade F51. It is made from duplex stainless steel, which combines the benefits of both austenitic and ferritic stainless steels, and is commonly used in applications requiring high strength, excellent corrosion resistance, and good performance at elevated temperatures.

Our range of A182 F51 encompasses various types:

Types : Weld Neck (WN), Long Weld Neck (LWN), Slip-On (SO), Blind, Lap Joint, Socket Weld (SW), Threaded, and Other Products
Size: 1/2″ – 48″
Pressure: 150# – 1500#
Producing Standard: ASME B16.5, ASME B16.47 Series A & B, EN1092-1:2002, etc.
Materials: ASTM A182 F51

Common Types We Can Manufacture

Due to its duplex structure, F51 flanges offer high mechanical strength and excellent resistance to corrosion, especially in environments containing chlorides. It provides strong resistance to pitting, stress corrosion cracking, and chloride-induced corrosion.

A182 F51 Weld Neck Flange

A182 F51 Weld Neck Flange provides a strong, smooth connection with a tapered neck for high-pressure and high-temperature applications.

A182 F51 Socket Weld Flange

A182 F51 Socket Weld Flange fits over the pipe and is welded inside, offering a smooth bore for high-pressure systems.

A182 F51 Threaded Flange

A182 F51 Threaded Flange features internal threads for easy installation and removal without welding.

A182 F51 Slip On Flange

A182 F51 Slip-On Flange slides over the pipe and is welded around the circumference, ideal for low-pressure applications.

A182 F51 Blind Flange

A182 F51 Blind Flange seals off the end of a pipeline or vessel with a solid cover, preventing flow.

A182 F51 Lap Joint Flange

A182 F51 Lap Joint Flange fits over a stub end and allows rotation for alignment, useful for systems needing frequent maintenance.

Size & Presure

SSM offers ASTM A182 F51 flanges in a wide range of sizes and pressure ratings to meet various application needs. Here’s an overview:

Diameter Range: Typically available in sizes ranging from 1/2 inch to 60 inches (DN15 to DN1500), with the option for custom sizes to match your specific requirements.

Class Ratings: Available in Class 150, Class 300, Class 600, Class 900, Class 1500, and Class 2500.

Face Types: Options include Raised Face (RF), Flat Face (FF), and Ring-Type Joint (RTJ).

Standardized & Custom F51 Flanges

SSM is capable of manufacturing SS 2205 Flanges in accordance with ASME B16.5, ASME B16.47, AWWA C207, EN 1902-1, and various other standards. We also offer customization options for size, pressure rating, unique finish, and more.

Please don’t hesitate to reach out to us directly to discuss your individual requirements and to request a quote or further information.

A182 F51 Flanges Applications

A182 F51 flanges are widely used in many industries and fields due to their excellent corrosion resistance, mechanical strength, and welding performance.

Chemical Industry

Widely used in chemical reactors, pumps, valves, and other equipment where corrosion resistance is critical.

Food and Pharmaceutical Industries

Applied in some food processing and pharmaceutical equipment to avoid corrosion and enhance equipment lifespan.

Oil & Gas Industry

Used in pipeline connections, pressure vessels, heat exchangers, and other equipment in the oil and gas sector.

One-Stop ASTM A182 F51 Flange Provider for All Your Needs

SSM has significant product advantages in manufacturing ASTM A182 F51 Flanges . Whether it’s quality or price, we will meet your needs.

More Information About ASTM A182 F51 Flanges

SA 182 F51 Meaning

SA 182 F51 refers to a specific grade of duplex stainless steel defined by the ASME (American Society of Mechanical Engineers) SA 182 standard.

ASTM A182 F51 Equivalent

Standard	Equivalent	Description
ASTM	A182 F51	Duplex Stainless Steel 2205 (US specification)
EN	1.4462	European designation for Duplex 2205
UNS	S32205	Unified Numbering System designation for Duplex 2205
ISO	ISO 3834-2	International standard for Duplex 2205
BS	S31803	British Standard equivalent to Duplex 2205
JIS	SUS 2205	Japanese Industrial Standard designation for Duplex 2205
DIN	X2CrNiMoN22-5-3	German Standard equivalent to Duplex 2205
AISI	2205	AISI designation for Duplex 2205

ASTM A182 F51 Chemical Composition

Element	Carbon (C)	Manganese (Mn)	Phosphorus (P)	Sulfur (S)	Silicon (Si)	Chromium (Cr)	Nickel (Ni)	Molybdenum(Mo)	Other Elements
Composition (%)	≤ 0.030	≤ 2.00	≤ 0.030	≤ 0.020	≤ 1.00	21.0 – 23.0	4.5 – 6.5	2.5–3.5	N 0.08–0.20

ASTM A182 F51 Mechanical Property

Property	Value
Tensile Strength, ksi [MPa]	90 [620]
Yield Strength	65 [450]
Elongation in 2 in. [50 mm] or 4D, min, %	25
Reduction of Area, min, %29 x 10^6 psi (200 GPa)	45

FAQ

Are ASTM A182 F51 Flanges welded?

Yes, ASTM A182 F51 Flanges can be welded, but it is important to follow proper welding procedures to avoid problems like hot cracking or intergranular corrosion. Pre- and post-weld heat treatments may be required in some cases. Duplex stainless steel flanges, including F51, generally have good weldability but must be welded with suitable filler material designed for Duplex 2205.

What are the key properties of ASTM A182 F51?

Corrosion Resistance: Superior resistance to chloride-induced corrosion, pitting, and crevice corrosion.
High Strength: Higher strength compared to regular austenitic stainless steels.
Stress Corrosion Cracking Resistance: Excellent resistance to stress corrosion cracking (SCC).
Temperature Resistance: Can withstand high temperatures up to 300°C-600°C (572°F-1112°F).
Good Weldability: Offers good weldability with minimal risk of hot cracking.

How does ASTM A182 F51 compare to other Duplex stainless steels?

ASTM A182 F51 is a Duplex 2205 stainless steel that combines the advantages of both austenitic and ferritic stainless steels. It offers:

Higher strength than regular austenitic stainless steels (like 304 and 316).
Better resistance to stress corrosion cracking (SCC) compared to other stainless steels.
Superior pitting and crevice corrosion resistance in chloride environments.
It is more corrosion-resistant than standard austenitic grades like 304 and 316, particularly in aggressive environments.

How do I maintain an ASTM A182 F51 flange?

To maintain ASTM A182 F51 Flanges, you should:

Regularly inspect them for signs of corrosion, stress corrosion cracking, or physical damage.
Keep them clean and free from chloride or other corrosive materials.
Follow proper welding and fabrication practices to ensure the integrity of the flange during installation.
Use proper sealing methods (e.g., RTJ seals) to maintain leak-proof connections.

Why Can SSM Provide You with High-Quality A182 F51 Flanges?

SSM offers high-quality ASTM A182 F51 flanges, with expertise in meeting all standards and requirements for this product.

Our CNC machines, welding equipment, and inspection instruments ensure precision, quality, and adherence to technical requirements.

Our engineering and production team has extensive experience in designing, producing, and inspecting these flanges. The professionalism and experience of our team members guarantee the reliability and high quality of our products. SSM is well-equipped to deliver ASTM A182 F51 flanges that meet the needs of various industries and applications.

If you have any questions or need more information, please feel free to contact us.

More Resources:

https://en.wikipedia.org/wiki/Duplex_stainless_steel